Feed-roll for planing-machines.



'Patentged Dec. 3!, mm.

c. w. H. BLOOD. FEED ROLL FOR PLANING MACHINES.

(Applicatiun filed June 28, 1901.)

(No Illqdel.) v

.shells or separate rolls b,

CHARLES WQ H. BLOOD, oF-nosToN,

\NOODS MACHINE COMPANY, OF

RATI ON OF MASSACHUSETTS.

FEED-ROILLJ FOR P SPECIFICATION forming part of Letters Patent 1\l'o. 690,383, dated December 31 PATENT OFFICE.

MASSACHUSETTS, ASSIGNOR' 'ro s; A. 'nos'ron, MASSACHUSETTS, A CORPO- r LA N ING-MACHINE Si" Application filed June 26, 1901. Serial No. 66,122. (No model.)

To allwhom, it may concern:

Beit known that I, CHARLES W. H. BLoon,

a citizen of the United States, residing atBoston, in the county of Suffolk and State of Massachusetts, haveinvented an Improvement in Feed-Rolls forPlaning-Machines, of which the following description, in connection with the accompanyiugdrawings,isaspecification,like characters on the drawings representing like parts; I

.Myinvention is an improvement in planingmaehines, and relates to a construction of the feedroll for permi ttin g the simultaneous feedingthrough the machine thereby with even feeding pressure of a plurality ofboards or timbers of varying thicknesses.

More definitely stated, my invention consists in providing on an unyielding shaft a series of independent. shells or rolls, each held downwardly by compression -springs which can yield toward said shaft for permitting the roll to yield to a thick timber or to an inequality thereof. v

My invention in-its preferred embodiment herein shown comprises various further de tails of construction, all of which will be more fully pointed out in the following description and thereafter further defined in the appended claims.

I In the drawings, Figure 1 shows in side elevation my invention applied to an ordinary feed-roll shaft, parts being broken 'away and shown in section for clearness of illustration.

Figs; 2, 3', and 4 are perspective views of certain constructional details which go tomake up the present embodiment of-the invention. Fig, 5 is a transverse on the line 5 5, Fig. 1. v

It will be understoodthat my invention is applicable to anyplaning-machi-ne ,or other machinewhere a yielding roll of this-charac-' teris I'6(1l] ll'(l,tll6 shaft to beingof such length and size as maybe requiredfor the purpose, having a journal ,enda and suitable driving mechanism a5. 1 v

' The feed-roll is made up of-a plurality of preferably separated a separator c, which, as special construction and from'each other by herein shown, is of vertical section taken l performs the twofold function of separating or alining the rolls and'retaining the springcarrier, as will presently be described.

Within the shell or roll b is a driver d, V keyed to the shaft a, and at the opposite ends vices e, which comprise carriers '6", contain-' ing compression-springs e?,'retained in the ends thereof, as is clearly shown in Figs; 4 v p and 5- 1 I I I vided with cooperatinglugs or teeth 5 d, re spectively, spaced'atintervals to permit the, looseness or freedom of movement therebe-v tween required to permit the shell to assume its different Fig.5. 7 It isnot new to have a yieldings'h'ell-like roll 1) driven by engaging arms vorteeth after the manner of an internal gear, and Idonot therefore claim the same as my invention, the. .7 latter residing more particularly in the particular provision for secu I action of'the roll and, further, residing in, the special construction by whichenormous strength of parts is provided and greatre- 75 sistance is secured between the: shell and tion or housingd alar undercut lion formed'iu the separator c: -the shell I) normally project bet dwith their inner 'surfaces b singer ispririg retainerfoi, 1

ween the teeth in supporting .-in suchp'o'sition being out of engagementwith theshat't a, as is clearly shown in theleft Thand section, Fig. 1, of the feed-roll, and when of=the driver are pressure-transmitting delhe roll or shell I) and driver d arepro- 6o positions, as isf'clearly shown in '6 ring the yielding driver, the springs and shell, the shaft. and so of the teethd. "Preferably the nn'd'ercut por i; is in alinement with asinii-- o contact with thespring-cai'riers e, the latte.r.95

, a section of the feed-roll is required to yield;-

as is shown in the second section, Fig. 1, the

teeth 12' of the shell-b forcethe lower part of the spring device e upwardly away from its seat in thehousings c' (1 as shown in Fig. 5.

'From the above description it will be evident that a firm strong downward pressure is constantly maintained on the various sections each independently of the other, the .device a not being capable of moving upwardly at its upper "side, but being positively held at its upper side between the undercutportions of the driver and separator and only capable of yielding upwardly at its lower side when required to do so by the passage of an extra thickness of material to be treated. W'hen thusrequired to yield, the upper portion of the member e remains practically unchanged at the instant of yielding, and thelowerportion of said member is collapsed or forced upwardly against the resistance of the inter,ven

'ing springs e said lower part at such time teeth (1', which normally retain it, and reachmoving away from the projecting ends of the ving its upward' limit when coming in contact with the shaft a,'be ing thus forcedupwardly -solely by the shell b,whose teeth b bear against it. To permit this movement, the depth of the teeth d from their undercut side (1 to their outeror peripheral side isless than the depth of the teeth I), similarly as the carriers e, are narrower than the distance between the shaft andthe housing d It will be observed also that'fth'e drivers have a driving engagement with the-shell b throughout practically the width of the latter, (seeFi 1,) and also the construction is such that the engaging teeth of both shell and driver have considerable thickness, as wellas the long engaging surface just mentioned, the result beinggreat strength. 4 g

' It; has been my aim to produce as nearly a solid constructionas'possible, and yet permit therequisite yielding movement.

- Thedriver is-practically solid with the shaft, and thepressure-transmitting .device is car- 'ried byv said shaft entirely-independently of the shell or roll b, the latter being simply a solid one-piecejpart, and allthe parts are'of azsimilar nature as far as possible, the entire arrangement being with'outcomplication of connected or dependent parts, excepting as the shell bears upon and is centered by con tact'with' the pressure-transmitting device.

The pressure-transmitting-device is so ar ranged,"as is evidentfromihig'fi,that the compressed springs exert theirmairimum ef-'.

' feet in a downward direction, thereby codpcrating-with the downward driving eliect or fighting action of the contacting teeth 1 2 of the driver and shell in giving a maximum downward pressure. p

The pressure-transmitting mechanism is carried by the shaft as distinguished from heing carried by the shell, or, in other words, if the shell were removed entirely the device e would not be effected, but would still be reanism.

' ceases .claim, and desire to secure by Letters Patent, is-

1. A feed-roll comprising a shaft, a driver mounted thereon,-a' shell surrounding said driver, said driver and shell havingibetween tained by the shaft, as itis held thereon by them mutually-engaging driving portions? "and yielding pressure-transmitting mechanism and means on'said shaft, independent of said shell, for retaining :said press ure-trans mitting mechanism, the latter operating upon said shell. 1' a 2. A feed-roll-com prising a shaft, a shell or by said shaft, and yielding means carried 'independently of said shell for normally maiu--- tainin'g said shell con-centric with said shaft and permitting it to yieldeccentrical-l y there;

to when required. 3. A feed-roll comprising ashaft, a "she roll roll moimted thereon and movable trans versely thereof,driving means for rotating said shell with said shaft, yielding pressure transmitting mechanism for normally maintaining said shell concentric with the shaft and permitting it to yield upwardly thereto when required, and means for preventing the upward movement with said shell of the up--.-

9o: roll, driving mechanism for driving said shell per part of said pressure-transmitting mech- D 4. A feed-roll coin prising a shaft, a shell or roll mounted thereon fand movable transversely-thereof,'.driving means for rotating spring mechanism carried independently of gaid shell for giving said shell a yielding downward pressure.

5. Afeed-roll comprising a shaft, a shellmounted thereon and movable transversely thereof, a driver carried by said shaft, said shell .and driver having engaging portions for loosely driving the former by the latter, and pressu re-transmitting devices at the opposite ends ofsaid driver and retained thereby and capable of yielding toward said shaft for permitting an eccentric movement of the shell.

6. In a feed-roll, a driver, and a shell loosely driven thereby, said driverand shell eachhaving radial teeth, and pressure transmitting devices at the opposite ends of said driver,

said pressnre transmitting devices being narrow and the teeth of thedriver being inte- J39 sure-transmitting mechanismsto the other,

gral with-the driver from 'one of said'pres' and the teeth of said shell being integral with.

the shell throngh'outitheir lengths;

7. Ina feed-roll, a driver, and abhellltxiselg I no said. shell with said shaft, and compression devices at the opposite ends of said driver,

driven thereby,said driver and shell each having radial teeth, and pressure-transmitting said pressure-transmitting devices being nan row and the teeth of the driver being'integral with the driver from one of said p essuretransmitting meehanisms to the other and" having overhanging portions at their ends for confining the pressure-transmitting mechanisms against movement away from the shaft, and the teeth of said shell being integral with the shell throughout their lengths.

8. A feed-roll comprising a shaft, a shell, 4

a driver therefor, and an annular pressuretransmitting device carried independently of said shell capable of collapsing toward said shaft and held against movement away from said shaft.

9. A feed-roll comprising a shaft, 2. driver, a shell, and a pressure-transmitting compression device, said driver containing a housing for retaining saidtransmitting device and said shell having projecting portions normally engaging said transmitting device within said housing for moving said transmitting device inwardly upon a corresponding move- .ment of theshell.

ries of shells or rolls,

10. 'A feed-roll comprising a shaft and a sedriving mechanism for driving said shells with the shaft, pressuretransmitting mechanismno'rmally maintaining said shells concentric with the shaft and permitting them to yield independently eccentrically thereto, and separators carried by the shaft for separating said shells,

11. Afeed-roll comprising ashaft, and a series of shells or rolls, driving mechanism for driving said shells with the shaft, pressuretransmitting mechanism normally maintaining said shells concentric with the shaft and permitting theinto yield independently eccentrically thereto, and separators carried by the shaft for separating said shells, said separators having retainingportions for holding ting mechanism said pressure-transmitting mechanism in nor- 45 mal position.

12. A feed-roll comprising a shaft, a shell, driving mechanism for the latter, and pressure-transmitting mechanism normally main taining said shell concentric with said shaft and permitting it to yield relatively thereto, and opposite housings or retaining portions on opposite sides of said pressure-transmitfor limiting the outward radial movement of the latter independently of the movement of said shell.

13. Afeed-roll comprising a shaft, a shell or roll',a driver in driving contact with said shell, and pressure-transmitting mechanism, separate from said driver, consisting of carriers adapted to be engaged by said shell, and springs yieldingly connecting said carriers.

14. A feed-roll comprising a shaft, a shell 01 roll,a driver in driving contact with said shell, and pressure-transmitting mechanism acting independent of said driver, the latter consisting of segmental blocks, and springs interposed between and separating said blocks holding the same in engagement with said shell.

15. Afeed-roll comprising a shaft, a shell or roll, a driver, said shell and driver having on their contiguous surfaces projecting teeth adapted to interloclrfor driving the shaft said teethbeing broad and heavy and extending longitudinally of and integral at their bases with said shell and driver,and means retained by the driver-teeth at each end thereof for normally maintaining said shell yieldingly" concentric to theshaft.

In testimony whereof I have signed my name to this specification in the presence of two snbscribin g witnesses.

CHARLES W. H. BLOOD. Witnesses: Gn'o. H. MAXWELL,

EDITH M. STODDARD.

Correct" It is hereby certified that in Letters Patent N 0. 690,383, granted December 31, 1901,

upon the application of Charles W. H. Blood, of Boston, Massachusetts, for an improv ment in f Feed-Rolls for Planing-Machines, an error appears in the printed specifica ticns requiring correction, as follows: In line 97, page 2, the words she roll should read shell or; and that the said Letters Patent should be read with this correction therein that-the same may conform to the record of the case in the Patent Oifice.

Signed, co'qntersigned, andssealed this 21st day of January, A. D., 1902.

[SEAL] F. L. CAMPBELL, 7 Assistant Secretary of the Interior. v Countersigned:

' F. I. ALLEN,

,Cmnmiseiomr cf Patents. 

